Two letter carriers were held up in Dorchester this morning, one on Mora Street around 11:15 a.m., and the second about ten minutes later and a couple blocks away on Fuller Street.
In the Mora case, the suspect appeared to have a gun. In the other case, the robber tried to grab the mailman's master mailbox key, but failed to get it. In both cases, the robber got away in a white sedan.